[INFO] cloning repository https://github.com/nixpulvis/oursh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nixpulvis/oursh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixpulvis%2Foursh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixpulvis%2Foursh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c3ce4a1c69eefeeea430d73082d0e3ca5606a48
[INFO] testing nixpulvis/oursh against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixpulvis%2Foursh" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nixpulvis/oursh on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-27/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/nixpulvis/oursh
[INFO] finished tweaking git repo https://github.com/nixpulvis/oursh
[INFO] tweaked toml for git repo https://github.com/nixpulvis/oursh written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/nixpulvis/oursh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pwd v1.3.1
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e0b49c0d3f9c50b4aff80e95db2ca389d0052a6472dba34b0bbb06581be031b
[INFO] running `Command { std: "docker" "start" "-a" "2e0b49c0d3f9c50b4aff80e95db2ca389d0052a6472dba34b0bbb06581be031b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0b49c0d3f9c50b4aff80e95db2ca389d0052a6472dba34b0bbb06581be031b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0b49c0d3f9c50b4aff80e95db2ca389d0052a6472dba34b0bbb06581be031b", kill_on_drop: false }`
[INFO] [stdout] 2e0b49c0d3f9c50b4aff80e95db2ca389d0052a6472dba34b0bbb06581be031b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f302a7df64b4f6cede2553e3f9710ef1e421ecff017fb64206a5fcbfef1da20
[INFO] running `Command { std: "docker" "start" "-a" "5f302a7df64b4f6cede2553e3f9710ef1e421ecff017fb64206a5fcbfef1da20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling bitflags v1.3.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling fd-lock v2.0.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.6
[INFO] [stderr]    Compiling lalrpop v0.19.6
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling ctrlc v3.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rustyline v8.2.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling pwd v1.3.1
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]    Compiling oursh v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `retain_mut`
[INFO] [stdout]  --> src/process/jobs.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use retain_mut::RetainMut;
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `retain_mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:102:1
[INFO] [stdout]     |
[INFO] [stdout] 102 | #![feature(box_syntax, box_patterns, vec_retain_mut)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oursh` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f302a7df64b4f6cede2553e3f9710ef1e421ecff017fb64206a5fcbfef1da20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f302a7df64b4f6cede2553e3f9710ef1e421ecff017fb64206a5fcbfef1da20", kill_on_drop: false }`
[INFO] [stdout] 5f302a7df64b4f6cede2553e3f9710ef1e421ecff017fb64206a5fcbfef1da20